Western Europe records hottest-ever June

Copernicus Climate Change Service said on July 9 that Western Europe had its hottest June on record, after two major heatwaves pushed monthly temperatures far above normal across much of the region. The EU climate monitor said the month was about 3C above the 1991-2020 average for Western Europe, while June 2026 was also marked by unusually warm sea-surface temperatures. Euronews, citing the Copernicus data, reported that June set heat records across Europe and the oceans. In Spain, the heat was still showing up in day-to-day warnings, with Barcelona hitting 40.5C on July 8 and parts of the country under elevated alerts. ### How unusual was June in Western Europe? Western Europe was about 3C hotter than average in June, according to the Copernicus data cited by France 24 and Euronews. France 24 reported that the EU climate monitor described June 2026 as the hottest June on record for the region, after an intense late-month heatwave swept across Europe. Euronews said the same dataset showed record June heat not only on land in parts of Europe but also across the world’s ice-free oceans. (france24.com) June 2026 was the second-hottest June globally, according to France 24’s report on the Copernicus release. Euronews said global sea-surface temperatures for ice-free oceans reached the highest June level in the dataset, narrowly surpassing the previous record set in 2024. ### What drove the record month? (france24.com) A “heat dome” was cited by France 24 as a key factor behind the late-June surge, describing a high-pressure system that trapped hot air over parts of Europe. Copernicus had already flagged unusually early heat in Western Europe in May, saying daily average temperatures in parts of western France, England and Wales had run more than 10C above average during a late-May event. (france24.com) Copernicus said in its June 10 analysis of the earlier episode that Western Europe had experienced an “unusually early and intense heatwave” between May 21 and May 30. That earlier event helps explain why the June record did not arrive as an isolated spike but as part of a broader run of abnormal heat across the region. (france24.com) ### What happened in Spain and Barcelona? Barcelona reached 40.5C on July 8, Euronews reported, calling it the city’s highest temperature in 112 years of records. France 24, citing AFP, reported a slightly different figure of 40.7C for the same event, also describing it as a record for Barcelona. Both reports said the reading came as another heatwave hit Spain. (climate.copernicus.eu) Spain’s state weather agency AEMET showed active warning pages on July 9, with alerts issued under its Meteoalerta system for adverse weather conditions. Additional reporting cited orange alerts in parts of Spain during the latest heat episode. ### Why are oceans part of this story too? Euronews said Copernicus found that June 2026 brought the highest June sea-surface temperatures on record for the world’s ice-free oceans. (euronews.com) The same report said marine heatwaves spread across the western Mediterranean and along Atlantic coastlines. (aemet.es) Copernicus had also highlighted record-breaking ocean temperatures in the tropical Pacific in its May bulletin. That matters because the monthly climate bulletins are tracking both land heat and ocean conditions in the same system, giving a broader picture of how widespread the warming was. (euronews.com) ### What should readers watch next? Copernicus has published the new climate bulletin on its website, and AEMET’s warnings page continues to update Spain’s active alerts in near real time. Travelers and residents looking for the next official updates can follow those two sources as July heat conditions develop. (climate.copernicus.eu 1) (climate.copernicus.eu 2)